:root{--text:#1f2024;--bg:#fff;--border:#e5e4e7;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font:16px/1.5 system-ui,Segoe UI,Roboto,sans-serif}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--text:#e5e6eb;--bg:#16171d;--border:#2e303a}}*{box-sizing:border-box}body{margin:0}button{font:inherit;border:1px solid var(--border);color:inherit;cursor:pointer;background:0 0;border-radius:4px;padding:6px 12px}input{font:inherit;border:1px solid var(--border);color:inherit;background:0 0;border-radius:4px;padding:4px 8px}.center-screen{flex-direction:column;justify-content:center;align-items:center;gap:16px;height:100vh;display:flex}.app{max-width:960px;margin:0 auto;padding:16px}.app-header{align-items:center;gap:16px;margin-bottom:24px;display:flex}.app-header h1{flex:1;margin:0;font-size:1.25rem}.app-header nav button{margin-right:8px}.app-header nav button.active{font-weight:700;text-decoration:underline}.new-activity-form{gap:8px;margin-bottom:16px;display:flex}.new-activity-form input[type=text]{flex:1}.activity-list{flex-direction:column;gap:8px;padding:0;list-style:none;display:flex}.activity-row{background:#7f7f7f14;border-left:6px solid;border-radius:4px;align-items:center;gap:12px;padding:8px 12px;display:flex}.activity-name{flex:1;font-weight:500}.elapsed{font-variant-numeric:tabular-nums;min-width:4.5em}.activity-edit-form{flex:1;align-items:center;gap:8px;display:flex}.date-range{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:24px;display:flex}.date-range label{flex-direction:column;gap:4px;font-size:.85rem;display:flex}.interval-table{border-collapse:collapse;width:100%}.interval-table th,.interval-table td{text-align:left;border-bottom:1px solid #7f7f7f33;padding:6px 8px}.round-unit-select{align-items:center;gap:8px;margin-bottom:16px;display:flex}.round-unit-select label{align-items:center;gap:6px;font-size:.85rem;display:flex}.round-unit-select .hint{opacity:.7;font-size:.8rem}.history-group{border:1px solid #7f7f7f33;border-radius:6px;margin-bottom:10px;padding:4px 12px}.history-group summary{cursor:pointer;align-items:center;gap:12px;padding:10px 0;list-style:none;display:flex}.history-group summary::-webkit-details-marker{display:none}.history-group summary:before{content:"▸";font-size:.8em}.history-group[open] summary:before{content:"▾"}.history-group-date{font-weight:600}.history-group-count{opacity:.7;font-size:.85rem}.history-group-total{font-variant-numeric:tabular-nums;margin-left:auto;font-weight:600}.history-group table{margin-bottom:12px}.history-residual{text-align:right;opacity:.85;margin-top:8px;font-weight:600}.note-dialog{border:1px solid var(--border);width:min(480px,90vw);color:inherit;background:var(--bg);border-radius:8px;padding:20px}.note-dialog::backdrop{background:#0006}.note-dialog h3{margin:0 0 12px}.note-dialog textarea{box-sizing:border-box;resize:vertical;width:100%;min-height:160px;font:inherit;border:1px solid var(--border);color:inherit;background:0 0;border-radius:4px;padding:8px}.note-dialog-actions{justify-content:flex-end;gap:8px;margin-top:12px;display:flex}